171021-M-ZQ619-036.JPG - U.S. Marines Capt. Jacob Dunn, left, and 2nd Lt. Carter Collins, right, observes an impact of an 81mm mortar from an observation point as part of the fire support team during Exercise Bougainville II, Pohakuloa Training Area on the Island of Hawaii, Oct. 21, 2017. Exercise Bougainville II prepares 2nd Battalion, 3rd Marines for service as a forward deployed force in the Pacific by training them to fight as a ground combat element in a Marine Air-Ground Task Force. Capt. Dunn is a forward air controller with 2nd Bn., 3rd Marines and a native of Ridgecrest, Calif. 2nd Lt. Collins is a platoon commander with 2nd Bn., 3rd Marines and a native of Tucson, Ariz. (U.S. Marine Corps photo by Sgt. Ricky Gomez)

Sonny Wong, a Vietnam veteran, tours 12th Marine Regiments various facilities and learns about how Marines fight in modern combat Nov. 7, 2017, at 12th Marine Regiment’s company office on Camp Hansen, Okinawa, Japan. - Sonny Wong, a Vietnam veteran, tours 12th Marine Regiments various facilities and learns about how Marines fight in modern combat Nov. 7, 2017, at 12th Marine Regiment’s company office on Camp Hansen, Okinawa, Japan. Wong was an interpreter attached to 12th Marines during the Vietnam War and decided to visit his old unit 51 years later. Yagel gave him a tour of the Regiment’s facilities and weapons as Wong described his experience working with the Marines. (U.S. Marine Corps photo by Sgt. Ally Beiswanger)

A U.S. Marine fires his rifle at targets while participating in the Infantry Platoon Battle Course at the Pohakuloa Training Area on the Island of Hawaii, Oct. 25, 2017. - A U.S. Marine fires his rifle at targets while participating in the Infantry Platoon Battle Course at the Pohakuloa Training Area on the Island of Hawaii, Oct. 25, 2017. The Marine is with 2nd Battalion, 3rd Marine Regiment, and is participating in IPBC for Exercise Bougainville II. Exercise Bougainville II prepares 2nd Bn., 3rd Marines for service as a forward deployed force in the Pacific by training them to fight as a ground combat element in a Marine Air-Ground Task Force. (U.S. Marine Corps photo by Lance Cpl. Isabelo Tabanguil)

Marines gearing up for ACM. - U.S. Marines palletize gear during an Alert Contingency Marine Air Ground Task Force drill Oct. 18, 2017 on Camp Courtney, Okinawa, Japan. Marines and Sailors palletized their gear, conducted weigh-ins and prepared to deploy within four hours of the first alert. The ACM must be prepared to respond within 24 hours to crises throughout the Asian pacific region to mitigate crises, protect U.S. citizens and territories or counter threats to U.S. national interests as needed. The Marines are embarkation specialists with Headquarters Battalion, 3rd Marine Division. (U.S. Marine Corps photo by Sgt. Ally Beiswanger)

A Marine aviator poses for a photo before participating in Blue Chromite 18. - U.S. Marine Capt. David Miller prepares to conduct a simulated night raid with multiple rifle squads during an air assault training event at Marine Corps Air Station Futenma, Okinawa, Japan, Oct. 31, 2017. Miller is currently participating in Blue Chromite 18 in Okinawa, Japan. Miller is a forward air controller (FAC) with 1st Battalion, 3rd Marine Regiment attached to 3rd Marine Division, III Marine Expeditionary Force under the Unit Deployment Program. Miller is a native of Queenstown, Maryland. (U.S. Marine Corps photo by Sgt. Ally Beiswanger)